this repo has no description
Add nix flake dev shell covering rust + elixir + ts monorepo
Pins the full toolchain per-project rather than relying on globally
installed rust/elixir/node. Direnv picks it up via '.envrc' on cd, and
'.gitignore' now excludes the '.direnv/' cache and 'result' symlinks
from 'nix build'.
Included:
* Rust stable + wasm32 target (for crates/opake-wasm), rust-analyzer,
clippy, rustfmt, plus wasm-pack and cargo-edit/watch/nextest.
* Elixir 1.18 on OTP 27 for apps/indexer (Phoenix 1.8).
* postgresql_17 client, matching docker-compose.development.yaml's
postgres:17-alpine image.
* nodejs_24 + bun for the TS monorepo.
* just for the justfile.
+136
+2
.envrc
+2
.envrc
+5
.gitignore
+5
.gitignore
+48
flake.lock
+48
flake.lock
···
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{
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"nodes": {
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"nixpkgs": {
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"locked": {
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"lastModified": 1776548001,
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"narHash": "sha256-ZSK0NL4a1BwVbbTBoSnWgbJy9HeZFXLYQizjb2DPF24=",
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"owner": "NixOS",
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"repo": "nixpkgs",
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"rev": "b12141ef619e0a9c1c84dc8c684040326f27cdcc",
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"type": "github"
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},
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"original": {
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"owner": "NixOS",
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"ref": "nixos-unstable",
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"repo": "nixpkgs",
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"type": "github"
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}
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},
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"root": {
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"inputs": {
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"nixpkgs": "nixpkgs",
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"rust-overlay": "rust-overlay"
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}
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},
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"rust-overlay": {
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"inputs": {
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"nixpkgs": [
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"nixpkgs"
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]
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},
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"locked": {
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"lastModified": 1776741231,
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"narHash": "sha256-k9G98qzn+7npROUaks8VqCFm7cFtEG8ulQLBBo5lItg=",
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"owner": "oxalica",
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"repo": "rust-overlay",
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"rev": "02061303f7c4c964f7b4584dabd9e985b4cd442b",
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"type": "github"
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},
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"original": {
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"owner": "oxalica",
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"repo": "rust-overlay",
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"type": "github"
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}
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}
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},
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"root": "root",
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"version": 7
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}
+81
flake.nix
+81
flake.nix
···
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{
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description = "opake dev shell — Rust + TS monorepo with wasm bindings";
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inputs = {
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nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
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# per-project rust toolchain via oxalica's overlay; keeps stable/
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# nightly/targets composable without rustup.
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rust-overlay = {
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url = "github:oxalica/rust-overlay";
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inputs.nixpkgs.follows = "nixpkgs";
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};
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};
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outputs = { self, nixpkgs, rust-overlay, ... }:
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let
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systems = [ "aarch64-darwin" "aarch64-linux" "x86_64-darwin" "x86_64-linux" ];
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forAllSystems = f: nixpkgs.lib.genAttrs systems (system: f (import nixpkgs {
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inherit system;
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overlays = [ rust-overlay.overlays.default ];
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}));
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in
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{
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devShells = forAllSystems (pkgs: {
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default = pkgs.mkShell {
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packages = with pkgs; [
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# ── rust toolchain ───────────────────────────────────────
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# stable + wasm target for crates/opake-wasm. rust-src and
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# rust-analyzer extensions give IDE-grade tooling.
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(rust-bin.stable.latest.default.override {
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targets = [ "wasm32-unknown-unknown" ];
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extensions = [ "rust-src" "rust-analyzer" "clippy" "rustfmt" ];
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})
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# wasm-pack drives the opake-wasm build pipeline. It pulls
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# in wasm-bindgen-cli at a version matching the crate's
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# wasm-bindgen dep, so we don't pin wasm-bindgen-cli here
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# (nixpkgs' pin frequently drifts from per-project lockfiles).
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wasm-pack
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# cargo meta-tools — live here (alongside the toolchain)
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# rather than globally in home/tools.nix, so they always
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# have a matching cargo on PATH.
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cargo-edit # cargo add / cargo upgrade
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cargo-watch # auto-rebuild on file change
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cargo-nextest # faster test runner
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# ── elixir / phoenix (apps/indexer) ──────────────────────
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# mix.exs pins `elixir ~> 1.15`; 1.18 on OTP 27 is current
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# stable and satisfies that. The beam.packages form locks
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# the elixir↔OTP pair explicitly (vs pkgs.elixir_1_18 which
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# picks whatever default OTP nixpkgs ships).
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beam.packages.erlang_27.elixir_1_18
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# postgres client + libpq — the indexer talks to the
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# dockerized postgres:17 from docker-compose.development.yaml
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# via postgrex (pure-elixir driver), but psql / pg_dump are
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# useful for mix ecto commands and ad-hoc db poking.
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postgresql_17
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# ── ts monorepo ──────────────────────────────────────────
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# package.json#volta pins 24.15.0; nodejs_24 tracks the
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# latest 24.x, which is close enough for bun's needs.
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nodejs_24
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bun
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# ── task runner ──────────────────────────────────────────
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just
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] ++ nixpkgs.lib.optionals pkgs.stdenv.isLinux [
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# Phoenix LiveReload uses inotify on Linux; macOS uses
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# fsevents natively and doesn't need this.
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inotify-tools
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];
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shellHook = ''
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echo "opake dev shell — $(rustc --version | cut -d' ' -f1,2), elixir $(elixir --version 2>&1 | tail -n1 | cut -d' ' -f2), node $(node --version), bun $(bun --version)"
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'';
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};
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});
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};
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}